The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2003
Filed:
Jul. 25, 2001
Uthamalinga Balachandran, Hinsdale, IL (US);
Arun C. Bose, Pittsburgh, PA (US);
The United States of America as represented by the United States Department of Energy, Washington, DC (US);
Abstract
An apparatus and method for decomposing NH . A fluid containing NH is passed in contact with a tubular membrane that is a homogeneous mixture of a ceramic and a first metal, with the ceramic being selected from one or more of a cerate having the formula of M′Ce M″ , zirconates having the formula M′Zr M″O , stannates having the formula M′Sn M′O , where M′ is a group IIA metal, M″ is a dopant metal of one or more of Ca, Y, Yb, In, Nd, Gd or mixtures thereof and &dgr; is a variable depending on the concentration of dopant and is in the range of from 0.001 to 0.5, the first metal is a group VIII or group IB element selected from the group consisting of Pt, Ag, Pd, Fe, Co, Cr, Mn, V, Ni, Au, Cu, Rh, Ru and mixtures thereof. The tubular membrane has a catalytic metal on the side thereof in contact with the fluid containing NH which is effective to cause NH to decompose to N and H . When the H contacts the membrane H ions are formed which pass through the membrane driving the NH decomposition toward completion.